Issue #2704821 by alexpott: url_alias table should be created by system install

(cherry picked from commit dcf8bb0ebaa476ba9971346b6e1770c4c6487084)

Issue #2706113 by alexpott: Disable Drupal\Tests\Listeners\HtmlOutputPrinter by default because PHPStorm is broken

(cherry picked from commit a2380a70bf62604637a65303537036271cbc8dd9)

Issue #2706679 by alexpott, jibran: Fix @file introduced by 2696669

(cherry picked from commit 447876081b52968f7bf1c0c3574d8cde7741ec78)

Issue #2701969 by Eli-T: core/composer.txt is out of date

(cherry picked from commit c163a984f2ba2a63d7c10a5db5e11556f6701dda)

Issue #2704911 by malcomio, thhafner: Missing apostrophe in documentation Usage Example array

(cherry picked from commit 5423f76ae2b29dfa4012a7e1cb5bdf0051c1f04e)

Issue #2688615 by rballou, dawehner: Add the file to Error::formatBacktrace()

Issue #2469721 by larowlan, alexpott, dawehner, jibran: Add functionality to store browser output to BrowserTestBase

Issue #2699637 by leolando.tan, jhodgdon, jummonk: Incorrect and unclear documentation on Views join handler plugins (default is LEFT JOIN)

(cherry picked from commit dd8056fb07c959a3da30899b37ee2090487cbe04)

Issue #2700495 by ronaldtebrake, nod_: Method removing expired drupalSettings.ajax tries to remove settings when there is no ajax defined

Issue #2589967 by alexpott, dawehner, damiankloip, valthebald: Rebuild routes immediately when modules are installed

Issue #2702677 by pfrenssen, chrko: Update to Symfony 2.8.4

(cherry picked from commit f1d08c2022e679f066b0f00ea9c25af0cf496210)

Issue #2653346 by Wim Leers, borisson_, jibran: Add UncacheableDependencyTrait: the opposite of UnchangingCacheableDependencyTrait